STAR HardProbes PWG

["Ma, Rongrong" <marr AT bnl.gov>]

Hello Brennan

In the interest of time, here are some comments to your poster. 

General
- add "Supported in part by" above the DOE logo
- I thought you will show that we can push to high event multiplicity with 
this dataset, but I do not see that. 

Title: 500 -> 510

ABSTRACT
- in the dielectron -> through the dielectron
- have shown a faster-than-linear rise for the self-normalized J/psi yield at 
mid-rapidity as a function of
- I suggest to move the last sentence to be at the beginning. Then probably 
you can add "In this poster," before "we present"

MOTIVATION
- quote the luminosity, which is more relevant, instead of number of events
- move the first bullet down to be the last one
- over earlier 200 GeV p+p data
- Second and third bullets: while it is true that quarkonium production 
mechanism is not well understood, I am not sure how sensitive your proposed 
measurement is to it. At least, people have only compared to models like 
PYTHIA, EPOS, Percolation, which more probe the correlation between soft and 
hard processes rather than the quarkonium production mechanism. Furthermore, 
MPI, mentioned in the conclusion section, is also not so much about the 
quarkonium production mechanism per se, but rather hard processes in general. 

THE STAR EXPERIMENT
- Used to Trigger Events -> Trigger on and identify electrons
- PMT timing, |vrtx|<3cm -> Online vertex 
- It is a bit weird that you only list the acceptance for TOF
- For both VPD and TOF, I suggest to add "Pileup rejection" (VPD can reject 
pileup events, while TOF rejects pileup tracks)
- For p_T, use "> 0.2 GeV/c" (we do not trust tracks above 30 GeV/c)

SIGNAL EXTRACTION
- Subtract like-sign pairs from unlike-sign pairs
- Left figure
-- Add "2017, p+p \sqrt{s} = 510 GeV"
-- Legend, axis titles are too small to read

CORRECTIONS AND CALIBRATIONS
- Events multiplicity characterization requires a luminosity unfolding 
correction -> Event multiplicity characterization requires a 
luminosity-dependent correction
- Combine the second and third bullets, and rephrase "Correct for 
multiplicity-dependent event triggering and vertex finding efficiencies for 
both MB and J/psi events."
- If needed, this section can be removed to make room for showing invariant 
mass distributions in different multiplicity bins, which are more informative 
I think. 

SYSTEMATIC UNCERTAINTIES
- It is not clear to me if you need this section since you do not show any 
uncertainties 

OUTLOOK, SUMMARY AND CONCLUSION
- As I commented above, the first bullet is not demonstrated
- I think you need to be more specific about what you will gain by including 
di-muon channel, e.g. low-pT Jpsi

Best
Rongrong

> On Mar 23, 2023, at 9:08 AM, webmaster--- via Star-hp-l 
> <Star-hp-l AT lists.bnl.gov> wrote:
> 
> Dear Star-hp-l AT lists.bnl.gov members,
> 
> Brennan Schaefer (brennanschaefer AT hotmail.com) has submitted a material for 
> a  
> review, please have a look:
> https://drupal.star.bnl.gov/STAR/node/63063
> 
> Deadline: 2023-09-03
> ---
> If you have any problems with the review process, please contact  
> webmaster AT www.star.bnl.gov
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